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* Corresponding author 1 Santé publique et épidémiologie des déterminants professionnels et sociaux de la santé 2 DS3 - ESIM - Déterminants Sociaux de la Santé et du Recours aux Soins 3 Equipe RPPC

Abstract : OBJECTIVE: To assess the effects of duration of exposure to biomechanical strains on various types of low back pain LBP. METHODS: The population study was a random sample from the GAZEL cohort. Durations of exposure to selected biomechanical strains during subjects- working lifetime and potential confounders were assessed in 1996 by self-administered questionnaires. Data on LBP in the previous 12 months were collected in 2001. Relations between various dimensions of LBP and durations of exposure to the biomechanical strains were analysed with multivariate regression models. Polytomous models were built to determine whether some biomechanical strains were specifically associated with some types of LBP. RESULTS: Analyses were performed separately for men n = 2218 and women n = 383. Significant associations were observed ORs reported are those for 20 years of exposure between LBP and durations of driving and bending-twisting for men OR 1.24 and 1.37 respectively; LBP for more than 30 days and duration of exposure to bending-twisting for men and women OR 2.20 and 2.00 respectively and duration of driving for women OR 3.15; LBP radiating to the leg and duration of driving for men OR 1.43 and bending-twisting for women OR 1.95; LBP radiating below the knee and duration of exposure to pulling-pushing-carrying for men OR 1.88. Bending-twisting in both men and women, and driving for women appeared to be stronger risk factors for LBP for more than 30 days. Pulling-pushing-carrying heavy loads appeared to be a risk factor specific for LBP radiating below the knee for men. CONCLUSION: This study suggests that exposure to biomechanical strains has long-term effects and a dose-response relation with duration of exposure and specific effects for some types of LBP.





Autor: Sandrine Plouvier - Emilie Renahy - Jean-François Chastang - Sébastien Bonenfant - Annette Leclerc -

Fuente: https://hal.archives-ouvertes.fr/



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